Revolving-cylinder gas-engine.



'msem G. A, WENDT. REVOLVING GYLINDER GAS ENGINE.

APPLIGATION FILED MAR. 31, 1913.

Patntd. Sept. 22, 1914.

4 SHEETS-SHEET 1.

Witnesses $057510 Adol /9 Vendf G. A. WENDT.

REVOLVING CYLINDER GAS ENGINE. APPLICATION FILED MAR. 31, 1913.

' Patented $6 11.22, 1914 4 $HBETS-SHEET 2.

a wvcwifom witnesses lf/tom:

G'usfa w; 140040/1 Wendf G, A. WENDT.

REVOLVING CYLINDER GAS ENGINE.

APPLICATION FILED MAR. 21, 1913.

l/vbtmeooeo aw )Q m fl a. kmswmk I Patented Sept. 22,1914.

4 SHEETSSHEET 3 Mum wow G. A. WENDT.

REVOLVING CYLINDER GAS ENGINE. APPLICATION FILED Mum, i913.

1 ,11:1,048. v I Patented Sept. 22, 1914,

4 SHBETS-SHBET 4.

4 I I 4 I z a I 5 I E BM JW l 8% gluveuto'z .W'nnnna citizen of the United States, resid sT 'rEs PATENT OFFICE.

usravn anoma'wnnp'r, or sromn, wasnme'ron.

ing a't' Spokanepin the countyof Spokan and State of Vashington, have invented.

newv andfuseful Improvements in Revolving-CylinderGas-Engines, of which the fol ,lowing' is, a specificat on."

I 'plify the valve mechanism 0 multiple cylin- 1 inailze'r described- V r In the. accompanying drawin%s:Figure 2o i {My invention relates to an improved form of revolving cylinder gas engine, and has as its principal object to eliminate diiliculties of. ignitionin mnltiple cylinder en'gines.

A second object is to im rove and simder engines.

A final object resides the particular a r. ran ement and combination of parts here- '1 is a side view-in elevation. g. 21s 'a view similar to Fig. 1 .ha ving-.aportion broken away to show valve actuating mechanism. ,Fig. 3 is a side'elevation of the machine shown in Fig. -1 taken from the opposite-direction- Fig. 4*is a view of the same machine in end elevation. Fig. 5 is ascetion-taken" on the-line 5-5 of g. 7 Fig..

l 6 is an enlarged detail sectional view of one of the cylinders and pistons shown in Fig.5 Fig.- 7 isa section taken on line of Fig. 3 looking in the direction .of the arrows.

Fig. 8 isan enlar ed sectional view taken I on the'line 8-8 0 Fig. 5. Fig. 9 is a de- 'tail'lof one of the valves used to govern the explosive mixture. Figs. and 11 are details of the valves used in the compression In the separate'view's the same .part is designated by the same referencecharacter. Referring -"more particularly to thefdraw: ings, 1 isa'fcylindrlcal casing as best shown in Fig. 7,'one face of the-casing. being provided centrally thereof with a-chamber .12 which is closed on its'outersideby a sprocket wheel 34. Thei ivheel 34 is rigidly mounted 'on the fixed shaft 23; Itwill be understood that there is a running fit'betw'eon the edge of the chamberlQ and said sprocket-wheel- The sprocket wheel 34 appears'also in Fig. 3 and "as clearly appearsin said the sprocket 351.. The .pipe 10 is .connected to 'a learbureter 'of any-suitabletype and 2.2 am pipes 2, there being one such figure,- apipe- 10 leads into the chamber 12 through I Specification of Letters Patent. P t ted s t, 23, 1914 ap lication filed itarcnarisia.senalmvsmis.

explosion cylinder 31 radiates from the inner 1, 2 and 3, and the aims 2 enter the cylinders pipe for each of the explosion cylinders. An I 3 at'their inner en s, or inother words, close to the casingL, Within each cylinder 3.is a pistonf l. The inner ends of the cylinders 3 are closed byheads such as 5 and as .the -p1stons 4 are shorter than usual in order to econonnze weight, the heads 5 are apertured -to receive the rods 38 which project inwardlyfrom the pistons 4 in order that the pistons mayv always be-heldin alinement.

The central portions of the heads 5 are provided with inwardly extending ridges such as 6, best shown in Figs. 7 and 11, and the piston rods 7 which are. pivoted to the pistons as at 8, pass through the heads 5 intermediate the ridges 6. In order to close the interio'r of the casing 1 against the im terior of the cylinders 3, I provide sliding.

members 15 through which the piston rods 7 pass but which make a sliding fit with the ridges 6. The pipes 2 are provided with apertured, portions which connect with the cylinders 3 and as shown in detail in Fig. 10, the axially extending portions of the pipes 2 contain inlet valves 13 which [are normally held closed by means of a spring 0 of Fig. 11 that the cylinder-heads 5 are provided with spring operated outlet valves 16 which afford a passagetherethrou'gh and serve to connect the interior of the cylinders 3 below the pistons 4 with the interior of the casing l. Now if we considera piston 4 such as the one shown in the u per part of Fig. 7 it will be seen that as t ispiston 4 rises, a partial vacuum will be produced beneath it and an explosive mixturewill be drawn in from the chamber 12, past valve 13 to the cylinder 3 below the When this piston begins to descen the explosive mixture is forced out through the It will be seen also from an inspection iston 4Q.-

loo

valve 16 into the interior of the case 1. Con- "sequently the interior of case 1 is alwa-y filled with explosive mixture.

Now the casing I is apertnred interme diate the cylinders 3 and I provide tubes suchas 17 connecting with'said apertures which lead. radially outwardly ,Ifrom the: ca sing '1 intermediate the explosion icylin 'ders 3.' At their outerend'sthetubes 17 eonnect with pipes 18' which connect in turn with the interior of valve casing -;19 Be-,-

fore'describing .the function of he epp'ara ig I tus within the valve casing 19 I wish to callattention to the arrangement shown Fig. 6 from which it will be seen that the sliding pieces have a circular section in the plane perpendicular to the pivot 8 and are held in close fitting engagement with the flanges 6 by means of cross pieces 14. It will be further seen from Fig. 6 that I provide a gland 7 on each of the sliding members 15 which may be packed so as to prevent leakage from the interior of the casing 1 to the interior of explosion cylinders 3. vAt the pitmans 7 assume diiferentpositions during the revolution of the engine, the members 15.

slide or run side by side to accommodate themselves to the movement of the 'pitmans,

' project.

Referring again to the valve casing 19, as best shown in Fig. -9, these cylinders contain valves such as 20 .whichcomprise rods 21 upon which are mounted three pistons 20. Now the pipes 18' connect1w1th the ,valve casing 19 about the center thereof,

and somewhat removed toward the outer end of the casing 19 the connection is taken ofi' .to a hollow annulus 7 which surrounds the.

outer ends of the explosive cylinder 3 some:

- what to one side of the center thereof. Now

the fixed shaft-.23. \Vhen the valves 20 are the inner ends of the rods 21 extend through the cylindrical-casing 1, as clearly shown in Fig. 7 and at their inner ends they are pivotally connected to a ring 22' whichis adapted to revolve around the outer surf-ace of a fixed eccentric'22 which-is rigid with placed in the proper position the carbureted mixture can pass from. the'casing 1 into-the annulus7. Within the aiinulus 'Z' is a sleeve valve 24 which comprises a ring member ,26 which fits. against the inner surface, of the annulus 7 and which carries at -proper .intervals .pistons .25, ,said pistons dividing the space within the annulus into suitable chambers as clearly shown in Fig. 5. Now each cylinder 3 conpcctswith the an- I I nulus. '7 by means-oi a short passage 8 which serves both for inlet and exhaust,- and valve 24 the cylinders whenboth the sleeve valve and the valyes 20 are in proper position explosive mixture passesthrough casing 1 9, annulus 7 and passages lnto the cylinder 3;. The sleeve rotated.. within the annulus 7' in the direct n op'posi tetdthe rotation of the engine as a 'h ol'e it being understood that Svblve-inthe direction shown The movement of the sleevewilves relative to the 'annulus 7 is caused by a spuocket wheel 27. The annu-.

lus is cut-away at ondj'ioint to permit the teeth of the sprocket to project within it.

The ring member 26 is provided, with notches such as'26f for the reception of the 1 teeth on the sprocket wheel 27. Now the sprocket 27- is carried on a shaft 28 which,

as best shown in Fig; 4, is supported by a bracket extending from the casing'l. At the outer end of the shaft 28 is a second sprocket, wheel 27'. which is driven by a sprocket chain. 33, which passes aroundthe fixed wheel34 prev1ously mentioned. After. the charge in a given cylinderhas been ex-; "ploded, thesleeve valve 24 assumes a position inwhich the passage 8' is connected with the appropriate outlet 9, there being one of the outlets 9 in the outer face of the annulus 7' for each of the explosion cylindc.s3.

Now as is best shown in t, the inlet valve 1 casings 19 are "situated at one side of the cylinders 3- and on the opposite sides thereof are similar valve casings '32. As shown inFig. 2, withinthe casings 32 are valves of a construction similar to the pre-' viously described valves 20. Valve casings "32 are connected. by" pipes such as 31 audit will be seen that each pipe 31 is farther from the center of the casing 1 at-one'end than it is at the other. It "will also'be seen that each pipe 31 is provided with a connection 50 which leads-to the interior of one of cylinders 3. The valves 32' are provided with rods til which are operated from an eccentric 42;},on' the shaft 30 ina manner similar to the previously described operation of the rods 21-' When valves 32' are in proper position a passage way is open from oneof themylinders to the one adjacent to it but. in the rear thereof with reference to the direction ofrotation. By this connection a hot blast is admitted from -one cylinder to the next for the; purpose of aifeeting explosion.

.Fig. 5. showsthemotor 'inthe position ready to start. 7 vided as shown .into seven sets of chambers by-the pistons 25 one set for each explosion cylinder and each set of chambers contains diate pistons. Two of t e Iast mentioned chambers are of equal'size and are just long enough so that. they will .not reach from Sleevevalve 24 being di-- three chambers formed b similar intermethe top port or passage 8 leading into the v cvlinder to the outlet, or exhaust port 9 while the third chamber of each set is of greater length for a "par osewhich will presently appear. The t of'the two small chambers ineach set serves to lead-the explosive mixture from the valve casing 19 intothe explosion cylinders through the ports 8. The second of the two small chambers in each set'is .in

communication with the port 8' during the explosion and expansion in the cylinders 3,

while the larger chamber 35 of each set lead the exhaust from-the port 8 t the post 9. f As shown the valves fare-so timed that they will be admitting new gas into the .cyl-i-nders -iand exploding during a halfrevolution of the complete structure, and exhausting during the other half, although. I do not wish to be limited fto suclrspecifictimiug. Now: the engine bespark plug 29 shown in 7, said spark plugbeing connected witha conductor 29 which is 'connected in turn to an insulated firing 30 [which is charged from some suitable exterior source .of electricity. An explosion-having been produced in -the lower cylinder means of the spark plug 29,- the valves 32 serve to admit a hot blast from shaft instead of the cylinders, it being inone"cylinder to the next at the proper ,time in order'to explode the latter. In this way the engine is made entirely self igniting and the troubles due to the usual ignition apparatus are. avoided.

It will be apparent that. the valves 20 and l 32 being of the balance type will be able to withstand the pressure causedby the explosion and yet may be moved by a small impulse. .It will be understood, however, that I do not mean to limit myself to any particular form of valve -for controlling the inlet of the explosive mixture or the passage of the hot blast from one cylinder to the next.

Power is taken from the engine by ineans of the sprocket 40 which is rigid with the side of the c lindrical casing 1, but it will be evident hat ifdesired, power may be taken from the engine by revolving the tended, however, in the present case to revolve. the cylinders.

The pitmans 7 being pivoted to the pistons It will be observed that as shown in Fig. i

5, the pitmans 7 connect the two yokes such as 41 which are bolted together surrounding the fixed crank pin 23' which is rigid with, but radially displaced from the shaft 2;.

'as previously mentioned are also pivoted to the yokes 21 in order to permit proper swinging motion of the pitmans. except III the case of one out of each of the three pitmans connected to each yoke, one of the scribed herein the position shown in Fig. 5, an initial explosion is caused by means .of a

a" plurality of cylinders mounted with their axes an a fven plane, a tube llHUVlBg": communication with. all of said cylinders, valve means mountedwithin-said tube adapted-to control the inlet and ex- 7ov haust of saidjcylinders, and means for movtube. .2, A gas engine comprising in combination, aplurality of explosivecylinders, Said cylinders being mounted in a given planeat right angles to'the axis of notation,' a tube surrounding the outer end of said cylinders and having communication witheach of them, said tube also apertures serving asaexhaust ports, means for introducing explosive mixture 'intosaid tube, and .a valve structure mounted in said tube adapted to control the admission of explosive mixture into said cylinders and'- the 5 exhaust of gasestherefrom, said valve structure comprising piston members dividing the space within said tube into inlet, explm sion and exhaust.chambers,.-the total number of said chambers being equal to three times.

the number of cylinders. plus three.

. ,3. A gas engine comprising in combina-.' tion, aplurality of explosive cylinders mounted in a giyen'plane at right angles to the axisof rotation, a-tube surrounding the outer end of said cylinders" and communicating with each of them',sai d tube being provided with ports for communicatin Ewith said cylindersand also with ports or exhaust purposes, a valve structure mounted 1 within said tube comprising ring sections 26 contacting with the inner face of said tube and pistons 25 dividing the'space within. said tube into inlet, explosion andexhaust".

cham ers, said chambers 'being'arranged in' oa I sets of three and there being; one more set than there are explosion cylinders, and means for moving said valve structure rela-' tively to said tube in a direction opposite to the direction of rotation of the engine. 4. An explosion engine comprising in combination, a plurality of explosive cylin-'- dcrs arranged radially about the axis of r0 tation, a tube surroundingthe outer ends of said cylinders and therewith, a valve structure mounted within said tube for governing the inlet and exhaus't'ofsaid cylinders, said valve structure comprising ring sections bearing against the far-e of said tube and hav ng recesses therein,

pistons separating the space within said tube into chambers and having operative connection with saidring sections, and a. sprocket wheel extending through 'anaperture in. said tube and having operativeenklzi gagement with the recess of said ring sections whereby said valve structure is operated.

5. An explosion engine comprismg -1n combination, a central cylindrical casing, a

ing said v ,lveameans longitudinally of said.

being. provided :with g having communication 116 plurality of explosion cylinders mounted radially around said casing, a hollow ring surrounding the outer ends of said cylinders and having ports communicating therewith and having other ports serving as exhaust ports therefor, a sleeve valve mounted within said ring for controlling the admission of explosive mixture and exhaust of gases from said cylinders, means for operating said sleeve valve, means for forcing exploslve mixture into the interior of said casing, andvalve means for controlling the admission of explosive mixture from said easing into .said ring. 6. gas engine comprising in combination, a central 0 lindrical casin a plurality H of engine cylin ers mounted ra i ally around said casing, pistons within said cylinders, a crank within said casing, pitman rods connecting said pistons with said crank, heads siparating said cylinders from the interior 0 said casing, sliding lates mounted in saidheads, through Whic I said pitman rods pass, valve means for'leading explosive mixture into said cylinders between said heads and said pistons, valve meanswhereby-sa d explosive mixture may be forced from'said cylinders into the'interiorof the casing,

valve means for admitting explosive mixture from said casing into the outer "ends oftsaid engine cylinders, and means for producing explosions in said cylinders.

7. A gas engine comprising in combina In testimony whereof I afiix my signature in the presence-of two witnesses. GUSTAVE ADO'LPH WENDT.

Witnesses HAROLD SCANTLEBURY, EDNA BROYLES. 

